2131787012 has 24 divisors (see below), whose sum is σ = 3951632160. Its totient is φ = 1002798720.

The previous prime is 2131787003. The next prime is 2131787057. The reversal of 2131787012 is 2107871312.

It is a self number, because there is not a number n which added to its sum of digits gives 2131787012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238439 + ... + 247217.

It is an arithmetic number, because the mean of its divisors is an integer number (164651340).

Almost surely, 2^2131787012 is an apocalyptic number.

It is an amenable number.

2131787012 is a deficient number, since it is larger than the sum of its proper divisors (1819845148).

2131787012 is a wasteful number, since it uses less digits than its factorization.

2131787012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12371 (or 12369 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 2131787012 is about 46171.2790812644. The cubic root of 2131787012 is about 1287.0080716210.

The spelling of 2131787012 in words is "two billion, one hundred thirty-one million, seven hundred eighty-seven thousand, twelve".